InternalNotifyOnServerBuild (grpc-all 1.2.0 API)

```
@ExperimentalApi(value="https://github.com/grpc/grpc-java/issues/2222")
public interface InternalNotifyOnServerBuild
```
Provides a callback method for a service to receive a reference to its server. The contract with ServerBuilder is that this method will be called on all registered services implementing the interface after build() has been called and before the Server instance is returned.

All Methods Instance Methods Abstract Methods
Modifier and Type	Method and Description
`void`	`notifyOnBuild(Server server)` Notifies the service that the server has been built.

Interface InternalNotifyOnServerBuild